Fruit and vegetable products — Determination of zinc content — Part 3: Dithizone spectrometric method
NORMA vydaná dňa 1.12.1983
Designation standards: ISO 6636-3:1983
Publication date standards: 1.12.1983
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Kategória: Technické normy ISO
Description / Abstract: The method consists in decomposing of organic matter, neutralizing of the solution obtained, adding of 1,5-diphenylthiocabazone solution, extracting of the zinc complex thus furmed with chloroform and measuring of the absorbance of the extract at a wavelength of 538 nm.